What is the practice of testing each individual component in isolation to ensure it functions correctly before integration?

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What is the practice of testing each individual component in isolation to ensure it functions correctly before integration?

Unit testing is the practice of testing each individual component in isolation to ensure it functions correctly before integration. By checking a single unit—like a function or method—on its own, you verify its behavior independently from the rest of the system. This makes it easier to pinpoint defects, speeds up debugging, and provides a reliable baseline when you refactor or change interfaces. Automated tests, often with mocks or stubs to stand in for other parts, help keep these checks fast and repeatable. Camel Case is simply a naming style for identifiers, not a testing process. Conventions refer to agreed-upon coding standards. Catch is a testing framework some developers use to write tests, but the general practice described is unit testing.

Unit testing is the practice of testing each individual component in isolation to ensure it functions correctly before integration. By checking a single unit—like a function or method—on its own, you verify its behavior independently from the rest of the system. This makes it easier to pinpoint defects, speeds up debugging, and provides a reliable baseline when you refactor or change interfaces. Automated tests, often with mocks or stubs to stand in for other parts, help keep these checks fast and repeatable.

Camel Case is simply a naming style for identifiers, not a testing process. Conventions refer to agreed-upon coding standards. Catch is a testing framework some developers use to write tests, but the general practice described is unit testing.

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